auto save

snake.py

 import pygame
+from pygame import locals
+from random import randint
 
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 
+bg = pygame.image.load('bg.png')
+right = pygame.image.load('right.png')
+food  = pygame.image.load('apple.png')
+x1 = randint(0,21)*30
+y1 = randint(0,15)*30
+x2 = randint(0,21)*30
+y2 = randint(0,15)*30
 # 创建一个窗口
-??
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+screen = pygame.display.set_mode((600,480))
+while True:
+    for event in pygame.event.get():
+        if event.type == locals.QUIT:
+            exit()
+    
+    screen.blit(bg, (0,0))
+    screen.blit(right, (x1,y1))
+    screen.blit(food, (x2,y2))
+    pygame.display.update()
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